Notenstein Emerges From Dark Shadow of Wegelin Bank

ST. GALLEN, Switzerland—A successor is rising from the ashes of Wegelin & Co., Switzerland's oldest bank and the target of a U.S. legal takedown for aiding tax evasion by Americans.

Behind the walls of an elegant villa about an hour east of Zurich, Notenstein Private Bank, which acquired a chunk of Wegelin's business, is plotting a new business strategy that is different from its mainstay of managing money for wealthy...